Tongue & Groove Hardwoods

For Covered Porches, Ceilings, and Walls

Tongue and Groove (T&G) hardwood boards create a tight, finished surface that feels more like interior flooring than outdoor decking. When used in the right applications, T&G delivers a cleaner look, fewer gaps, and a true extension of the home.

Best for: covered porches, ceilings, soffits, and protected walls
Not for: open or fully exposed decks (see Standard Hardwood Decking or Deck Tiles) or weather exposed siding (see RainScreen Siding)

Unlike standard decking, Tongue and Groove boards fit tightly together, leaving only a small expansion gap. Because covered porches and roofed areas don’t need water to drain between boards, T&G becomes an ideal solution where appearance and comfort matter most.

The result is a smoother surface, tighter joints, and a space that feels intentional—not like an outdoor deck brought inside.

Key Benefits of Tongue & Groove Porch Boards

  • Tighter fit, cleaner look
    Boards install with about a 1/16″ gap, creating a smooth, flooring-like surface.
  • Perfect for covered spaces
    Ideal for roofed porches, ceilings, soffits, and protected walls where drainage gaps aren’t needed.
  • Less waste, fewer cuts
    Butt joints don’t need to land on joists, reducing material waste and layout headaches.
  • More natural, finished appearance
    Randomized joints create a look similar to interior plank flooring—not exterior decking.
  • Versatile applications
    Commonly used for porch floors, ceilings, interior flooring, and exterior walls under cover.
  • Only slightly more than standard decking
    The added cost comes from milling the profile and is usually marginal on standard porch sizes.

👉 Learn more about using Tongue & Groove for ceilings and cladding →

Ipe tongue-and-groove porch with rich brown color variation and smooth, refined grain.